Observation 80616: Agaricales sensu lato
When: 2011-10-22
Herbarium specimen reported

Notes: Original Herbarium Label: Leucopaxillus laterarius (Peck) Singer & A.H. Smith

Herbrium Specimen: UBC F27832 [as “L. laterarius”]
Spores 5-7 µm, round, amylloid, verrucose

Proposed Names

18% (5)
Recognized by sight
83% (1)
Recognized by sight: It’s definitely a gilled mushroom! :-) Providing a higher level id since I really don’t think it should be showing up as L. laterarius since I just found this species for the first time.
28% (1)
Based on microscopic features

Please login to propose your own names and vote on existing names.

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Should it be considered…
By: Dave W (Dave W)
2014-06-26 21:16:45 CDT (-0400)

that a cluster of, say Leucopaxillus mushrooms, possibly grows next to a solitary specimen of some other species close enough to fuse the lower exterior of the solitary stipe?

Leucopaxillus albissimus…
By: Richard and Danielle Kneal (bloodworm)
2014-06-26 19:08:23 CDT (-0400)

why not?
the micro matches (spores are too large for L. laterarius)…if “round” means what Kuo calls, “more or less elliptical.”
they appear to have been decomposing conifer debris.
the pileus on some of the specimens on the cluster in the back, appear to be slightly depressed.
the color change in maturity is concurrent w/ the description of L. albissimus.
also, the margin appears “lined” in the mature specimen.
L. laterarius is said to primarily decompose hardwood litter in the east, if i am not mistaken…

Re: I wonder about the microscopy
By: Oluna & Adolf Ceska (aceska@telus.net)
2014-06-26 16:54:37 CDT (-0400)

The microscopy came from the fruiting body in the two first images and that fruiting body, in turn, came from the cluster shown in the third image. Bruising and discoloration happened during the travel from Breitenbush to Victoria. That took us the whole day. I took the photo of the cluster in Breitenbush and those of a single fruiting body in Victoria three days later. Only Leucopaxillus can withstand such a treatment (cf. Arora, Mushrooms Demystified, 2nd Ed. p. 168 – about Leucopaxillus albissimus).
It is a pity that the bulk of this collection was thrown away. We brought home 22 specimens from the 2011 Breitenbush foray, including this particular one. These specimens are already in the UBC herbarium, but not all have been accessioned yet.

I wonder about the microscopy
By: Christian (Christian Schwarz)
2014-06-26 15:35:47 CDT (-0400)

did it come from the mushroom in the first two images or from one of the clustered fruitbodies in the lower image?

To me the top two resemble Rhodocollybia oregonensis with the brownish-red staining on stipe with broken-off rooting base and brown-centered cap color like the one in the observation 33308.

No comment
By: Oluna & Adolf Ceska (aceska@telus.net)
2014-06-26 14:37:04 CDT (-0400)

Alan, see Oluna’s comment below.

Oluna says:
By: Oluna & Adolf Ceska (aceska@telus.net)
2014-06-26 13:49:17 CDT (-0400)

Oluna says: “Nobody else than I saw this fungus under the microscope, but everybody knows what it is!”

Supporting specimen
By: Oluna & Adolf Ceska (aceska@telus.net)
2014-06-22 11:37:25 CDT (-0400)

Debbie, it’s a pity that you did not keep the collection. I will trace out Oluna’s kleptotype and have the UBC to pay some attention to it. Adolf

good to know …
By: Debbie Viess (amanitarita)
2014-06-22 10:56:58 CDT (-0400)

that even after three years, this ID is still driving us crazy! ;)

It is NOT L. laterarius. This is not a Leucopax, those were SOFT fruit bodies.

Here’s the Kuo page on that sp.;

It is not an Entoloma, either: the fb reddened all over, did NOT have pink nodulose spores.

Perhaps the MO notes that let one know what label to look for in the herbarium is enough … for now.

Sometimes, the mushrooms win, and keep their names a secret.

All we can say for sure, for now, is that it is a gilled mushroom.

I did not take home material, that I can recall.

It is Agaricales for sure!.
By: Oluna & Adolf Ceska (aceska@telus.net)
2014-06-22 00:25:44 CDT (-0400)

Doesn’t Leucopaxillus laterarius (Peck) Singer & A.H. Smith belong into Agaricales?
Oluna took a part of Debbie’s collection, brought it home and processed it into a herbarium specimen. It was in among ca. 3,200 collections that we took to the UBC hebarium at the end of March 2014. On June 19, the UBC herbarium manager sent me the UBC fungal database that was just uploaded to the UBC computer. When looking at the UBC accession numbers, the herbarium technicians managed to accession about the half of Oluna’s Breitenbush material and this particular specimen is not among that stuff. However, it definitely is in the batch of collections we brought to the UBC. The UBC collection manager will be on holidays till the end of July and you can get Oluna’s specimen on loan as soon as she is back and the collection is accessioned. Debbie, you took the bulk of this collection. Have you preserved it?
Nathan, there is a serious glitch in MO, i.e., that anybody can cross out the original ID and scribble his/her own name there. If you would do the same with the real herbarium labels, you would be banned from all the herbaria. Yes, I can trace up the link between your “Agaricales” and our “L. laterarius”, but the hired herbarium technicians might not see the link.

did we ever bother to get a spore print on this one?
By: Debbie Viess (amanitarita)
2011-11-09 12:56:11 CDT (-0400)

I don’t recall. but the microscopy already done rules out Entoloma.

Send me a piece
By: Dimitar Bojantchev (dimitar)
2011-11-09 11:56:51 CDT (-0400)

Send me a piece of that mushroom, including gill tissue and I guarantee you to find the genus within 3 min.

Entoloma can have a very clustered habit. Many examples.

not pink spores, but merely reddening…
By: Debbie Viess (amanitarita)
2011-11-09 11:47:44 CDT (-0400)

with age and handling, as did the stipe when it was first collected.
microscopy was already done.

reading the entire sighting can be quite useful. clustered entolomas??! and of course the spores also counter-indicate…

the genus has been so far quite elusive, and quite a few of us have been working on this one already. but feel free to throw your hat into the ring as well Dimitar. Perhaps YOU’LL be the lucky one to pin a name on it. DNA may be the best option at this point…

Pink? Entoloma?
By: Dimitar Bojantchev (dimitar)
2011-11-09 05:57:01 CDT (-0400)

Do I see pink spores? This looks so much like one of our Entoloma species…

Microscopy should tell immediately.

the third photo shows the original cluster…
By: Debbie Viess (amanitarita)
2011-11-09 00:01:23 CDT (-0400)

the first two photos show an individual from that cluster, I’m assuming a couple of days later.

What is
By: Irene Andersson (irenea)
2011-11-08 17:36:51 CDT (-0400)

in the third picture? I can’t see anything there that looks like the first ones. Is it possible that the pictures show something else, and not the one that has been looked at in the microscope? This ID worries me too..

It doesn’t look like a Melanoleuca either, and I don’t know of a Porpoloma with verrucose spores (although it reminds a bit of pes-caprae).

I am just frustrated because it has so far, IMO
By: Debbie Viess (amanitarita)
2011-11-08 15:41:11 CDT (-0400)

led us to a dead end. do YOU think this macro-mushroom resembles a Leucopaxillus???

that’s all I meant. of course it is useful to have the microscopy, once we find a better match.

I did find one Lyophyllum species with finely warted, punctate spores (scabrisporum), but they are inamyloid and the macro isn’t even close.

Microscopy not helping?
By: Oluna & Adolf Ceska (aceska@telus.net)
2011-11-08 14:37:19 CDT (-0400)

How can you say that the microscopy is not helping? OC

ah, the microscopy isn’t helping…
By: Debbie Viess (amanitarita)
2011-11-08 13:53:36 CDT (-0400)

and if anything is making me even more confused about this ID. :(

I really really don’t think this big mushroom cluster, that fleetingly stained red at the time, with the greasy white caps and complete lack of the matted mycelium typical at the base of Leucopaxillus sp. is a Leucopaxillus anything.

Not that I have a better name for you, at this point…

Spores round, verrucose & amyloid
By: Oluna & Adolf Ceska (aceska@telus.net)
2011-11-08 05:23:24 CDT (-0400)

I used Moser’s key for white-spored genera with amyloid spores and got to the genus Leucopaxillus. Then I used the Kuo’s key to the Leucopaxillus species:
I don’t know any Clitocybe or Lyophyllum species with amyloid spores.

Not Clitocybe or Lyophyllum?
By: Danny Miller (alpental)
2011-11-08 00:58:48 CDT (-0400)

I remember these being soft and fleshy, not tough like Leucopaxillus. Are you sure they couldn’t be a Clitocbye with spore drops or a Lyophyllum with verrucose spores?

Created: 2011-10-25 03:47:48 CDT (-0400)
Last modified: 2016-02-18 02:15:29 CST (-0500)
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